cp's OEIS Frontend

A079716 a(n) = 2*(F(1)^3+F(2)^3+F(3)^3+...+F(p)^3)/(F(1)+F(2)+F(3)+...+F(p)) where p is the n-th prime and F(k) denotes the k-th Fibonacci number.

%I A079716 #10 Aug 25 2025 16:22:59
%S A079716 2,5,27,174,7955,54378,2551019,17482358,821234595,264431660859,
%T A079716 1812440734590,583600131432954,27416783156825867,187917427075527110,
%U A079716 8828119011157298499,2842626904464482727003,915317035112361317429843,6273676290103919245031562
%N A079716 a(n) = 2*(F(1)^3+F(2)^3+F(3)^3+...+F(p)^3)/(F(1)+F(2)+F(3)+...+F(p)) where p is the n-th prime and F(k) denotes the k-th Fibonacci number.
%F A079716 a(n) = 2*A005968(prime(n)) / A000071(prime(n)+2) [corrected by _Sean A. Irvine_, Aug 25 2025].
%Y A079716 Cf. A000040, A000045, A000071, A005968.
%K A079716 nonn,changed
%O A079716 1,1
%A A079716 _Benoit Cloitre_, Feb 16 2003